Typewriting machine



Mirc-h 17, 1931. A UTZ 1,196,736

' l TYPEWRITING MACHINE I Filed Aug. 2, 1926' I l 'I'. 'l

INVENTOR ATTOR W Patented Mar. 17, 1931 lilhllTED PATENT @FFiQE ANTHONY UTZ, OF HARTFORD, CGNNECTICUT, ASSIGNOR TO ROYAL TYPEWRITER COMPANY, INC., F NEW YORK, N. Y., A CORPORATON 0F -`rl'IElll YORK TYPEWRITING MACHINE Application lerl August i,

ln the well known standard Royal Inachine, the traveling carriage is supported by a shift frame which is moved for case shift pees. rlhe type bars also contact with abutment or striker plate, limiting their movement toward the platen and it is, there fore, necessary to have the position of the shift frame adjusted quite exactly with relation te the position occupied by the type bars at the end of their movement. This adjust ment has heretofore been obtained by mounting` one end of each of a pair of parallel links connected at their other ends to the shift frame so that the link may be adjusted by 5 means of an eccentric screw or bushing.

This method of adjustment has always been objectionable because it changes the uniformity of the parallel action of the shift arm and the parallel link and consequently gives the face of the platen a rotary motion which destroys the proper relation between the platen and 'type face at the moment of printing` and has a tendency to make type impressions light on top or on bottom. It is, therefore, necessary after making such adjustments to rcadjust the upper and lower case stop motion screws.

This invention relates to a particular mounting for the shift frame and its supporting parallel arms by which the entire frame may be adjusted in two directions at right angles to each other. One adjustment is in a vertical direction for bringing about the proper or central relation between the type face and the printing line of the platen at the time of printing regardless of whether or not the machine is provided with an abutment for the type bars. The other adjustment is in a horizontal. direction and being at right angles to the other adjustment cannot disturb the proper relation existing between the type face and the surface of the platen. This latter adjustment moves the platen to or from the printing` position of the type bar and in a plane at right angles to the face of the type when a type bar is in printing` position in order to position the platen so that the proper innlirint or impact by the type will be made,

ieee. sel-iai no. 125,521.

ln the specific embodiment of the invention. the shi ft frame supporting arms are carried by tivo sli dable plates movably mounted on the insi of the side frame of the machine. One of t i. e plates is adjustable in a vertical direction only while the other plate is adjustable vertically with the first plate and also in a horizontal direction independently of the first plate,

`Further objects of the invention will be apparent from the subsequent detailed description and the appended claims.

ln the drawings:

Figure l is a fore and aft section through the machine embodying the invention with parts shown in section.

Figure 2 is a side view of the adjustable plates on the right hand sido of the machine showing' their relation to the machine frame.

Figure 3 is a, section on the line 3--3 of Figure 2.

ure 4 is a sectional view taken on line l--ll of Figure 3- The drawings disclose a machine frame A, a carriage B supporting a platen C against the the front side of which strike type bars l) which may be actuated by the usual or any desired form of type action. An abutment or striker plate E limits the movement of the type bars toward the platen. The shift frame F is supported by upper parallel arms or bell crank levers H carried by a rock shaft K and by lower parallel links G. The hori- Zontal arm of the bell crank lever is pivotally connected to the shift frame F, and each of the links Gris pivotally connected to the vertical arm of the bell crank lever H and to the shift frame F. A shift key L and a shift lock key M operate in the usual manner and there are also shown the latch N for locking the shift frame in the lower position and a latch O operated only by the shift lock key for locking the shift frame in upper case position. Certain other features are illustrated but not mentioned as they form no part of the invention.` All the parts thus far described are illustrated as being;r those in use in the well known Royal machine, but the invention may be embodied in machines of widely dif- A the printing' position of the type bar being ferent character.

5 limited by the abutment.

- grooves 5 and ribs 6.

The parallel links G are pivotally attached to studs l on the plate 3 by means of screws 2. These studs lit in a plate 3, in which plate is also vthreaded the cone bearing screw l which engages and supports for pivotal movement the end vof the rock shaft K. ln this manner the entire shift frame is carried directly by the plate 3. This plateis provided with two horizontal grooves 5 which engage horizontal ribsv G onv asecond plate 7 located between the plate 3 and the frame of the machine. A screw threaded bolt 8 passes through the frame and both plates 3 and 7 and is provided with a nut 9. rlhis holds the two plates together and holds both plates to the side of the machine. A clearance l() which is provided in the main frame for the bolt 8 is suilicient to allow vertical move-mentof both plates relative to the main frame and there is also suliicient clearance 3Gl provided in the plate 3 for said bolt to allow horizontal adjustment of said plate 3 on the plate 7.

The inside of the machine frame is provided with a vertically disposed rib ll ef;- tending on both sides and the bottom ofthe plates and the upper edge of the machine frame projects inwardly so that the plates rest partially in each depression on the inside of the machine frame. rlhe sides of the plate 7 engage snugly with the wall of the rib 11 for a considerable distance, thus compeln` ling straight line movement of the plate 7 when adjusted vertically.

rlhe plate 3 is given a horizontal movement in one direction by of a screw l2 previde-d with a locl nut 13, which screw passes through a boss 14 and bears against the upper portion of one side of the plate 3. rlhe movement of theplate 3 in the other horizontal direction is obtained by means of a screw 15 threaded through a portionl of the machine frame and bearing against the opposite edge of the plate`3. This screw is held in adjust ed position by a set screw 16. The adjustment of the plate 3 by these means is independent of the plate 7 as the plate 3 slides in a right line on the plate 7 owing to the rlfhe two plates 3 and 7-are adjusted simultaneously in a vertical direction by means of av screw 19 bearing against the lower edge of the plate 3, which screw passes through a boss 2O formedY by a continuation of the rib ll and is held in kdesired position by a lock nut 21. A holding screw 17 bears against the upper edge of the plate 3 and is held in position by a lock nut 18. lt is toV be noted that these screws bear directly against the plate 3, but themovement of the plate 3 in this direction necessarily moves the plate 7 also. vThis construction is adopted so that the screws may be as far as possible from the outsiderface of the base side in'order to insure ample strength of material'.

The Vcone bearingv pivot screw l which is screw threaded into the plate 3 passes through an opening 22 inthe side frame A and a corresponding opening in the plate 7 to allow the adjustments described to be made without this pivot screw contacting with the side frame. f

Thus it will be seen that the shift frame F is supported by the arms H and the links G, that the arms and the links are in turn fulcrunied on and supported bythe adjustable plates 3, that the shift frame isconsequently supported by said plates, and that the fulcrum of each arm l-l is adjustable in planes at right angles to each other.

lt will be obvious from the above description that the present invention provides for the adjustment either vertically or horizontally, or both vertically and horizontally of the entire shift frame and that such vertical and horizontal adjustments may be independently made. lt will be understood that the shift frame supporting meansV as above described is duplicated at opposite sides of the main frame and consequently the platen may be trued relative to the type face when the type is in printing position by horizontally and independently adjusting both plates 3. Since both adjustments are made in straight lines they cannot interfere in any way with any other adjustments which may have been made. llt is also possible to obtain very slight movements and to hold the adjusted frame exactly in the desired position. It is obvious that various details of the invention may be modified as regardstheir physicalembodiment without in any way departing from the spirit of the invention. lt is also obvious that the invention may be applied to other types of machines and if employed in a machine in which type bars at the printing point occupy an angle to rthe vertical, it will only be necessary to have the plates adjusted in a direction parallel to the face of the type when the type bar is in its printing position and vin another direction at right angles to the face of said type bar. rlhe inventiontherefore, has a wide range of use and is to be regarded as limited only by the'scope ofthe appended claims. Y

l claim as my invention: y

l. ln a typewriting machine embodying a main frame, a carriage having a platen, pivoted type bars, and an abutment for the type bars, the combination of a shift frame supporting the carriage for case shift movement, a member at eachv side of the machine mounted on the main frame for adj ustmentin di'k Cil main frame, a carriage having a platen, pivoted type bars, and an abutment for the type bars, the combination of a shift frame supporting the carriage for case shift movement, a member at each side of the machine mounted on the main frame for adjustment in directions at right angles to each other, means for supportimgv the shift frame on said members, means directly engaging said members for adjusting the members and the shift frame in a direction at right angles to the face of the type when a tj/pe bar is in printing position, and means also directly engaging said members for adjusting; said menibers and the shift frame in a direction parallel to the face of the type when a type bar is in printing position.

3. In a typewriting machine embodying a main frame, carriage having a. platen, pivoted type bars and an abutment for the type bars, the combination of a shift frame supporting the carriage for case shift movement, a plate carried by the main frame at each side Which plates support the shift frame,

, and means for adjusting the plates in two directions at right angles to each other to obtain proper printing` relation between the platen and the type bars.

et. In a typewriting` machine embodying a main frame, a carriage having a platen, pivoted type bars, and an abutment for the type bars, the combination of a shift frame supporting the carriage for case shift movement, a plate carried by the main frame at each side which plates support the shift frame, means for adjusting,1 the plates in a direction at right angles to the face of the type when a type bar is at the printing point, and independent means for adjusting,` the plates in a direction parallel to the face of the type when a type bar is in printing position.

5. In a typevvriting1 machine embodying; a main frame, a carriage having a platen, pivoted type bars, and an abutment for the typebars, the combination of a shift frame supporting the carriage for case shift movement, a plate mounted at each side of the main frame and constrained for right line movement thereon and in a direction parallel to the face of the type when a type bar is in printing position, a second plate mounted on the first and constrained for rig` t line movement in direction at right angles to the face of the type when a type bar is in printing position, said plates supporting,` the shift frame and means for adjusting),I said plates.

6. In a typeivriting machine emboclyiiip,- a main frame, a ca ria-ge having' a platen, pivoted type bars, and an abutment for the type bars, the combination of a shift frame supporting the carriage for case'shift movement, a plate mounted at each side of the mam frame and constrained for right line movement thereon, and in a direction parallel to the face of the type when a type bar is .in printing position, a second plate mounted on the lirst and constrained for right line movement in a direction at right angles to the face of the type when a type bar is in printingposition, said plates supporting the shift frame and means for adj listing the sec-- ond plate.

7. In a typewriting machine embodying a main frame, a carriage having` a platen, pivoted type bars, and an abutment for the type bars, the combination of a shift frame supportinga the carriage for case shift movement, a plate mounted at each side of the main frame and constrained for right line movement thereon, a second plate mounted on the first and constrained for right line movement in a direction at right angles to the direction of movement of the first plate, said plates supporting' the shift frame and means for adjustiirigboth plates in a direction parallel with the face of the type when a type bar is in printing,` position.

8. In a typevvriting` machine embodying a main frame, a carriage having a platen, pivoted type bars, and an abutment for the type bars, the combination of a shift frame supporting,- the carriage for case shift movement, a plate mounted at each side of the main rame and constrained for right line movement thereon, a second plate mounted on the lirst and constrained for right line movement in a direction at rin'ht angles to the direction of movement of tne irst plate, said plates supporting the shift frame, means for adjusting' the second plate in a direction perpendicular to the face of the type when the type bar is in printingI position, and means for adjusting both the first and second plates in a direction parallel with the face of the type when a type bar is in printing position.

9. In a typewritinn; machine embodying; a main frame, carriage having a platen, pivoted type bars, and an abutment for the type bars, the combination of a shift frame supporting the cffirriagge for case shift movement, a plato mounted at each side of the main frameand constrained for right line movement thereon, second plate mounted on the f1 :t and coi'istrained for right line movement in a direction at right angles to the direction of movement of the first plate, d. secon d plates support the shift frame, said firs' and second plates being respectively7 movable in a direction at right anales to the face of the type and in a direction parallel to the face of said tjvpe 1when a type bar is printing); position and means cooperating with both first and second plates for adjustinoj the second platos in both of said directions.

l0. In a typewriting machine embodying a main frame, a carriage having a platen, pivoted type bars, and an abutment for the type bars, the combination of a shift f 1ame Cri ' supportino` the carriage for case shift move- CAD nient, a plate mounted at each side of the main framev and constrained for right line movement thereon, a second plate mounted on `the first and constrained for right line movement in a'direction at 'right angles to the direction of movement of the first plate, said second plates supporting the shift frame, said first and second plates being respectively movable in a direction at right angles to the face of the type and in a direction parallel to the face of'said type when a type bar is in printing position, means for adjusting the second plates in one of said directions independently of the first plates, and means for adjusting the second and first plates simultaneously in the other of said directions.

l1. ln atypevvriting machine embodying a main frame, a carriage having a platen, pivoted type bars, and an abutment for the type bars, the combination of a shift frame supporting the carriage for case shift move- .ment, a plate mounted at each side of the main frame and constrained for right line movement thereon, a .second plate mounted on the'first and constrained for right line movement in a direction at right angles to the direction of movement of the first plate. said second plates supporting the shift frame, said first and second plates being respectively movable in a direction at right angles to thefface of the type and in a direction parallel to the face of said type when a type bar is in printing position, means for adjustingthe second plates in one of said` directions independently of the first plates, and means for adjusting the second and first plates simultaneously in the other of said directions, all of said adjusting` means directly engaging the second plates.

12. ln a typevvriting machine embodying a main frame, a carriage having a platen, pivoted type bars, and an abutment for the type bars, the combination of a shift frame supporting the car "iage for case shift move-- ment, devices carried by the main frame at each side and Ventirely supporting the shift frame, and means for adjusting said devices in tivo right line directions at an angle to each other, said directions being respectively at right angles to and parallel to the face of the type when a type bar is in printing position. 13. In a typeivriting machine Vembodying a main frame, a carriage having a platen, pivoted type bars, and an abutment for the type bars, the combination of a shift frame supporting the carriage for case shift move- Vment, rdevices carried by the main frame at each side and entirely supporting the shift frame, each of said devices comprising a plate mounted on the side ofthe main frame, guiding means on the side of the main frame for Aguiding said plate in a right line direction 'of adjustment, a second plate having a ri and groove connection With the first plate for guiding said second plate in a right line direction of adjustment, at Vright angles to the first direction, the shift frame being supported by said second plates, said directions being respectively at right angles to and parallel to the face of the type when a type bar is in printing position, and means for retaining said plates Ain adjusted positions against movement relative to each other and to the main frame.

14E. In a typewriting machine including a main frame, a carriage having a platen, pivoted type bars cooperating With the printing line of the platen, and an abutmentY for the type bars, the combination of a shift frame supporting the carriage for case shift movement, and a plate mounted on the main frame at each side thereof for supporting the shift frame, said plates being mounted for adjustmentsin two right line directions at an angle tov each other for respectively centralizing the printing line of the platenV relative to the type When the bar is in printing position andfor varying the impact of the type against the platen.

v15. ln a typevvriting machine embodying a main frame, a carriage having a platen, pivoted type bars, and an abutment for the type bars, the combination of a shift frame supporting the carriage for case shiftmovement, a plate mounted at each side of the main frame and constrained for right line movement thereon and in a direction parallel to the face of the type When a type bar is in printing position, and a second plate mounted on the first and constrainedr for right line movement'in a direction at right angles to the face of the type When a type bar is in printing position, said plates supporting the shift frame.

16. In a typevvriting machine embodying a main frame, a carriage having a platen, pivoted type bars, and an abutment for the type bars, the combination of a shift frame supporting the carriage for case shift movement a plate mounted at each side of the main frame and constrained for right line movement thereon and in a direction parallel to the face of the type when a type bar is in printing position, a second plate mounted on the first and constrained for right line movement in a direction at right angles to the face of the type when a type bar is in printing position, said plates supporting the shift frame, and means for retaining said plates in adjusted positions against movement relative to each other and to the main frame. j p

17. In a-typeWriting machine including a main frame, a carriage having a platen, and type bars cooperating with the printing line of the platen, the. combination of a shift frame supporting the carriage for case shift movement, and a. plate mounted on the main vframe at each side thereof for supporting Cil ,ein

CFI

the shift frame, said plates being mounted for adjustments in two right line directions at an angle to each other tor respectiveljY centralizing the printing line ot' the platen relative to the type when the bar is in printing position and Jfor varying the impact of the type against the platen.

18. ln typcvvriting machine including a main frame, a carriage having a platen, and type hars cooperating with the printing line ot the platen, the combination of a shift trame supporting the carriage for case shift movement, a plate mounted at each side of the main trame and constrained tor right line movement thereon and in a direction parallel to the tace ot the type when a type bar is in printing position, and a second plate mounted on the first and constrained ii'or right line moi/"ement in a direction at right angles to the `tace of the type When a type bar is in printing position, said plates supporting the shift trame.

19. ln a. typeivriting machine including a main trame a carriage having a platen, and

type bars cooperating with the printing line of the platen, the combination of a shittframe supporting the carriage for case shift movement, a plate mounted at each side of the main traine and constrained for right line movement thereon and in a direction parallel to the tace of the type when a type bar is in printing position, a second plate mounted on the first and constrained for right line movement in a direction at right angles to the tace of the type when a type bar is in printing position, said plates supporting the shift trai e, and means Jfor retaining said plates in adjusted positions against movement relative to each other and to the main trame.

20, ln a typevvriting machine including a main trame, a carriage having a platen, and type bars cooperating with the printing line of the platen, the combination ot a shift i'rame supporting the carriage for case shift i( movement, a plate mounted on the main irame each side thereof for supporting the shift frame, said plates being mounted for adjustments in two right line directions at an angle to each other for respectively centralizing the printing line of the platen relative to the type when the bar is in printing position and :tor varying the impact of the type against the platen, and means for adjusting said plates in said right line directions.

21. In a typewriting machine including a main trame, a carriage having a platen, and type bars cooperating with the printing line of the platen, the combination of a shift :trame supporting the carriage for case shift movement, a plate mounted at each side of the main trame and constrained tor right line movement thereon and in a direction parallel to the tace ot the type when a type bar is in printing position, a second plate mounted on the 'first and constrained for right line move- 

